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2014/10/16 ¤W¤È 08:11:31
android Programming Glossary: contextwrapperDifference between getContext() , getApplicationContext() , getBaseContext() and “this” http://stackoverflow.com/questions/10641144/difference-between-getcontext-getapplicationcontext-getbasecontext-and of the entire application not just the current Activity. ContextWrapper.getBaseContext If you need access to a Context from within another.. access to a Context from within another context you use a ContextWrapper. The Context referred to from inside that ContextWrapper is.. a ContextWrapper. The Context referred to from inside that ContextWrapper is accessed via getBaseContext . share improve this answer..
Accessing SharedPreferences through static methods http://stackoverflow.com/questions/3806051/accessing-sharedpreferences-through-static-methods method getSharedPreferences String int from the type ContextWrapper I tried to work around this by using an Activity instance like..
Android create file on internal storage http://stackoverflow.com/questions/5017292/android-create-file-on-internal-storage internal share improve this question You should use ContextWrapper like this ContextWrapper cw new ContextWrapper context File.. this question You should use ContextWrapper like this ContextWrapper cw new ContextWrapper context File directory cw.getDir media.. should use ContextWrapper like this ContextWrapper cw new ContextWrapper context File directory cw.getDir media Context.MODE_PRIVATE..
http://stackoverflow.com/questions/5458156/diffinitive-rules-for-using-androids-getbasecontext-getapplicationcontext-or-u this question The getBaseContext is the method of ContextWrapper. And ContextWrapper is Proxying implementation of Context that.. The getBaseContext is the method of ContextWrapper. And ContextWrapper is Proxying implementation of Context that simply delegates..
Save internal file in my own internal folder in Android http://stackoverflow.com/questions/5766609/save-internal-file-in-my-own-internal-folder-in-android test out.close Second way OutputStreamWriter out try ContextWrapper cw new ContextWrapper this File path cw.getDir myfolder Context.MODE_PRIVATE.. way OutputStreamWriter out try ContextWrapper cw new ContextWrapper this File path cw.getDir myfolder Context.MODE_PRIVATE if path.exists..
Android: why must use getBaseContext() instead of this http://stackoverflow.com/questions/9605459/android-why-must-use-getbasecontext-instead-of-this interface getBaseContext is the method of ContextWrapper . And ContextWrapper is Proxying implementation of Context that.. getBaseContext is the method of ContextWrapper . And ContextWrapper is Proxying implementation of Context that simply delegates.. in your case Spinner class is not subclass of Context or ContextWrapper class Toast.makeText getBaseContext SELECTED Toast.LENGTH_SHORT..
Difference between getContext() , getApplicationContext() , getBaseContext() and “this” http://stackoverflow.com/questions/10641144/difference-between-getcontext-getapplicationcontext-getbasecontext-and Activity context if you need a context tied to the lifecycle of the entire application not just the current Activity. ContextWrapper.getBaseContext If you need access to a Context from within another context you use a ContextWrapper. The Context referred..
Accessing SharedPreferences through static methods http://stackoverflow.com/questions/3806051/accessing-sharedpreferences-through-static-methods is giving me Cannot make a static reference to the non static method getSharedPreferences String int from the type ContextWrapper I tried to work around this by using an Activity instance like this public static SharedPreferences getSharedPreferences..
Android create file on internal storage http://stackoverflow.com/questions/5017292/android-create-file-on-internal-storage phone storage in in folder media Thanks. android file storage internal share improve this question You should use ContextWrapper like this ContextWrapper cw new ContextWrapper context File directory cw.getDir media Context.MODE_PRIVATE As always refer.. media Thanks. android file storage internal share improve this question You should use ContextWrapper like this ContextWrapper cw new ContextWrapper context File directory cw.getDir media Context.MODE_PRIVATE As always refer to documentation ContextWrapper.. file storage internal share improve this question You should use ContextWrapper like this ContextWrapper cw new ContextWrapper context File directory cw.getDir media Context.MODE_PRIVATE As always refer to documentation ContextWrapper has a lot to..
http://stackoverflow.com/questions/5458156/diffinitive-rules-for-using-androids-getbasecontext-getapplicationcontext-or-u method and why android android context share improve this question The getBaseContext is the method of ContextWrapper. And ContextWrapper is Proxying implementation of Context that simply delegates all of its calls to another Context. Can.. why android android context share improve this question The getBaseContext is the method of ContextWrapper. And ContextWrapper is Proxying implementation of Context that simply delegates all of its calls to another Context. Can be subclassed to modify..
Save internal file in my own internal folder in Android http://stackoverflow.com/questions/5766609/save-internal-file-in-my-own-internal-folder-in-android openFileOutput mypath.getAbsolutePath MODE_PRIVATE out.write test out.close Second way OutputStreamWriter out try ContextWrapper cw new ContextWrapper this File path cw.getDir myfolder Context.MODE_PRIVATE if path.exists path.createNewFile path.mkdir.. MODE_PRIVATE out.write test out.close Second way OutputStreamWriter out try ContextWrapper cw new ContextWrapper this File path cw.getDir myfolder Context.MODE_PRIVATE if path.exists path.createNewFile path.mkdir File mypath new File..
Android: why must use getBaseContext() instead of this http://stackoverflow.com/questions/9605459/android-why-must-use-getbasecontext-instead-of-this and Spinner inherit this method from AdapterView.OnItemSelectedListener interface getBaseContext is the method of ContextWrapper . And ContextWrapper is Proxying implementation of Context that simply delegates all of its calls to another Context. Can.. this method from AdapterView.OnItemSelectedListener interface getBaseContext is the method of ContextWrapper . And ContextWrapper is Proxying implementation of Context that simply delegates all of its calls to another Context. Can be subclassed to modify.. without changing the original Context. as per javadocs .. and in your case Spinner class is not subclass of Context or ContextWrapper class Toast.makeText getBaseContext SELECTED Toast.LENGTH_SHORT .show means getBaseContext is method of ContextWrapper and..
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